Linux: Remove some unused NPAPI code.

content/common/plugin_list.h

Index: content/common/plugin_list.h
===================================================================
--- content/common/plugin_list.h	(revision 268893)
+++ content/common/plugin_list.h	(working copy)
@@ -34,7 +34,6 @@
 // This object is thread safe.
 class CONTENT_EXPORT PluginList {
  public:
-
   // Gets the one instance of the PluginList.
   static PluginList* Singleton();
 
@@ -159,18 +158,6 @@
   static bool ReadWebPluginInfo(const base::FilePath& filename,
                                 WebPluginInfo* info);
 
-#if defined(OS_POSIX) && !defined(OS_MACOSX)
-  // Parse the result of an NP_GetMIMEDescription() call.
-  // This API is only used on Unixes, and is exposed here for testing.
-  static void ParseMIMEDescription(const std::string& description,
-      std::vector<WebPluginMimeType>* mime_types);
-
-  // Extract a version number from a description string.
-  // This API is only used on Unixes, and is exposed here for testing.
-  static void ExtractVersionString(const std::string& version,
-                                   WebPluginInfo* info);
-#endif
-
  private:
   enum LoadingState {
     LOADING_STATE_NEEDS_REFRESH,